What did YOU do to decorate your kid's bedroom? HGTV presents 10-themed bedrooms for kids that will make you feel like an inadequate parent.

This one is admittedly cool: the LEGO-covered room by Lena Seow, Vrinda Khanna and Suzan Wines of I-Beam Design:

LEGO boards cover a wall of this room, from floor to ceiling. "Children can build with or against gravity," says Wines, adding that the child's ability to impact the basic architecture of the play area by building on the wall is a large part of the appeal. "Everything a child builds becomes an integral part of the play-space architecture until a new construction is made," she says.The room also features small cube-shaped pillows, adding to the building adventure. "Kids can build their own environments to play in and on," Wines says.